he served every president from eisenhower to obama and working as a head store keeper. >> what are the items popular among presidents over the years. >> i know 41 didn't like broccoli. broccoli could not be served at the white house. >> one of hamilton's proudest moments was during the most painful period in american history. >> what was it like being a black man in the white house during the civil rights movement? >> it was very hard. they were promoting some people and not promoting blacks. >> so hamilton gave the white house an ultimatum. on behalf of the black butler staff they wanted more pay or they wouldn't work at a state dinner. >> we are not working at the state dinner. this is the only way we will get a raise. then two days later we got our raise. >> oprah winfrey was uhed by their cornel. >> the grace and nobility it took to do that and to hold your head up every day, i just have a greater sense of pride for those men in that time. >> a time hamilton says he will never forget, five decades of white house memories. abc news, washington. >>> a sunday street celebration in san